For any two portions of fire, small or great, will exhibit the same ratio of solid to void; but the upward movement of the greater is quicker than that of the less, just as the downward movement of a mass of gold or lead, or of any other body endowed with weight, is quicker in proportion to its size.

I will not allow the Athenians to sin twice against philosophy.

Happiness is prosperity combined with virtue.

Evidence from torture may be considered completely untrustworthy

Think as wise men do, but speak as the common people do.

Everything that depends on the action of nature is by nature as good as it can be.

Comedy has had no history, because it was not at first treated seriously.